History · Anniversaries

1700th anniversary: Pappus of Alexandria, one of the last great Greek mathematicians of antiquity,...

Name: 1700th anniversary: Pappus of Alexandria, one of the last great Greek mathematicians of antiquity,...
Start: 2020-10-18

Sun, October 18, 2020

6 yr ago

Source

In 320, Pappus of Alexandria, one of the last great Greek mathematicians of antiquity, observed an eclipse that allowed historians to calculate the approximate dates of his life.

Also on Oct 18, 2020

Religion· Baha’iBirth of the BabThe first of the Twin Holy Birthdays. Begins at sunset the evening before.6 yr agoBaha’i World Centre, computedDetails →

Source, method and history

Source

Wikipedia

How we know

Wikipedia "On this day" selected anniversary, 1700 years (320 to 2020).

Recurs

annual

Feed

Subscribe to Anniversaries

Changes

2026-09-25: added to 2020-10-18